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Moreover, Kim et al

The placebo-controlled trial revealed significant enhancements in total and forward sperm motility, particularly among patients with low motility levels

A study in people with type 2 diabetes taking antidiabetic treatment showed that carnitine supplements were able to significantly lower blood sugar levels, compared to a placebo.[2] Carnitine and metabolism Carnitine has the ability to transport fatty acid molecules across cell membranes to the mitochondria, mainly in the heart and skeletal muscles, aiding in their further oxidation and use by the cells

Therefore, RBP levels are low in vitamin A deficiency (119)